Power
permission
Low security
IMM2 debug serial
port enable
TPM physical
presence
The following table describes the function of each jumper on the system board.
Table 2. System-board jumpers
Jumper name
Description
IMM2 debug serial port enable (CN42)
Two-pin header. If a jumper is installed, the serial I/O port
is sent to the IMM2. If a jumper is not installed, the serial
I/O port is sent to the front serial port.
Low security (CN45)
Three-pin jumper block for debug only. The default
position are pins 2 and 3.
Power permission (CN47)
Two-pin jumper block. The default is no jumper. Place a
jumper on pins 1 and 2 to force power permission from
the IMM2 to the real time management module (RTMM).
Trusted Platform Module (TPM) physical presence (CN51)
Two-pin jumper. The default is no jumper. Place a jumper
on pins 1 and 2 to indicate a physical presence to the
IMM2 TPM chip.
System-board LEDs
Use this information to locate the system-board LEDs.
The following illustration shows the locations of the LEDs on the system board.
Microprocessor 2
error
Battery
error
SAS
backplane
error
Daughter
card
error
IMM
error
Microprocessor 1
error
DIMM
error 7 - 12
DIMM
error 1 - 6
System-board switches
Use this information to locate the system-board switches.
The following illustration shows the location of the switch block on the system board.
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